Question

What is the wavelength of the most intense light emitted by a giant star of surface temperature 5000K? The constant in Wien's law is 0.00290 m. K.

A) 582 nm
B) 576 nm
C) 578 nm
D) 580 nm

Answer 1

The wavelength of the most intense light emitted by a giant star of surface temperature 5000K is 580 nm.

Step-by-step explanation:

Wien's law relates the wavelength of the most intense light emitted by a blackbody to its temperature. The equation is given by:

λ = 0.00290 / T,

where λ is the wavelength in meters and T is the temperature in Kelvin.

To solve for the wavelength at a temperature of 5000K, we substitute the given value into the equation:

λ = 0.00290 / 5000 = 5.8 x 10-7 meters = 580 nm.

Therefore, the wavelength of the most intense light emitted by a giant star of surface temperature 5000K is 580 nm, which corresponds to option D.